Darren Bravo back in West Indies Test side for first time since 2016; Shamarh Brooks and John Campbell earns maiden call-up.
Keemo Paul picked up five wickets befroe Evin Lewis cracked 18-ball fifty to helps visitors 2-1 series win.
The all-rounder cracked a 26-ball 42* before claiming a fifer, as Bangladesh beat Windies by 36 runs in 2nd T20I.
Buoyant West Indies look to seal T20I series in the second game at Dhaka on Thursday.
Cottrell 4-28 kept Bangladesh to just 129, and Shai Hope then smashed a fifty off just 16 balls
Century from Shai Hope but in Vain as Bangladesh clinch series 2-1.